I went to the group interview in HK. It took more than two hours for me. The first round was a group interview where everyone got to introduce themselves and participated in a group discussion and a debate. After that, three people were asked to leave behind for another round of one on one interview. The interview was based on my CV and my understanding of the job and the financial market. The HR was very efficient and informed me the following day for another interview. So that's where I am now.